Aon vs Travelers: Professional Liability / E&O Insurance

Travelers underwrites E&O with separate products by profession and routes you to an independent agent; Aon, a global broker and adviser, serves law, accounting and consulting firms.

Kearny Risk organizes these comparisons for firms whose advice, content or technology creates professional exposures.Research updated 2026-09-30

Aon: professional liability as addressing professional-services firms’ liability exposure and says it tailors coverage structures to a firm’s needs. It identifies E&O as a commonly used name for professional-liability insurance; actual policy terms are not stated. Travelers: e&O as covering the costs of client allegations of inadequate work, negligent actions or failure to meet the expected level of service, including legal defense and settlement costs, and says coverage can be customized to the risks of a specific profession.

Sources reviewed

  1. 01
    Professional Services Practice

    Aon · Named professional-services audiences and global advisory role, lines 125–128; line offerings and explanations lines 131–190; contact link lines 120–122. Global practice page; no U.S. state or account-specific placement schedule. · accessed 2026-09-30

  2. 02
    Professional Liability – US Direct Errors and Omissions Insurance

    Hiscox Inc. specimen · About this Policy / Coverage for Claims Made Against You; I.A Insuring Agreement; I.B Defense; I.C Settlement; II.A Notice of Claims; II.C Optional Extended Reporting Period; III.A, III.K, III.M, III.R, III.S Exclusions; IV.A–B Limits and Deductible; VI.O Professional Services; VI.U Wrongful Act · accessed 2026-09-16

  3. 03
    Professional liability insurance

    Insurance Information Institute · Opening paragraphs (professional services/advice and E&O name); Claims not covered by general liability; What types of businesses need professional liability insurance?; What’s covered… and what’s not (claims-made versus occurrence, defense and judgments, non-financial/intentional limits, BOP/in-home exclusion) · accessed 2026-09-16

  4. 04
    FAQ: Professional liability insurance

    Texas Department of Insurance · What’s professional liability coverage?; What types of damages…; What’s general liability insurance?; Do I need professional liability… if I have general liability…?; Is professional liability insurance required?; Can a client require…?; What’s the difference between occurrence policies and claims-made policies · accessed 2026-09-16

  5. 05
    Errors and Omissions Insurance (E&O)

    Travelers · What Is Errors and Omissions Coverage (E&O)?; Who needs errors and omissions insurance?; Select a product; Travelers Casualty and Surety Company of America and its property casualty affiliates footer · accessed 2026-09-23

  6. 06
    Management and Professional Liability Insurance

    Travelers · Errors & omissions (E&O) insurance description; Applications and forms for agents: management and professional liability applications · accessed 2026-09-23

  7. 07
    Get business insurance

    U.S. Small Business Administration · Six common types of business insurance table · accessed 2026-09-16

What Are the Key Differences Between Aon and Travelers Professional Liability (E&O) Insurance?

Underwriter or broker placement

Travelers says it underwrites E&O as a standalone policy written for the buyer’s profession; Aon describes a global brokerage and advisory practice. Ask Travelers which issuing entity appears on the policy, and ask Aon which insurer will take the placement. [1] [5]

Separate professional products

Travelers lists E&O products for accountants, design professionals, lawyers, real estate and other professions. Aon names law, accounting and consulting firms as its practice audience. If your occupation is specialized, ask both providers how the offered form addresses its particular work. [1] [5]

Profession-specific coverage wording

Travelers says its E&O coverage can be customized to profession-specific risks and describes defense and settlement costs for allegations of inadequate work or negligent service. Aon says it tailors coverage structures but does not enumerate the same allegations. Compare the forms against client contract duties. [1] [5]

What Should You Confirm in Aon and Travelers Professional Liability (E&O) Insurance Quotes?

  • Ask Aon to confirm the quoted policy form, retroactive date and covered allegations; its offering says professional liability as addressing professional-services firms’ liability exposure and says it tailors coverage structures to a firm’s needs. It identifies E&O as a commonly used name for professional-liability insurance; actual policy terms are not stated. [1]
  • Ask Travelers to confirm the quoted policy form, retroactive date and covered allegations; its offering says e&O as covering the costs of client allegations of inadequate work, negligent actions or failure to meet the expected level of service, including legal defense and settlement costs, and says coverage can be customized to the risks of a specific profession. [5]

Areas of coverage

Aon

  • role: Aon presents Professional Liability / E&O as a line its Professional Services Practice helps arrange or advise on for professional-service firms. Aon is describing a global brokerage and advisory service, not issuing the underlying policy. The producing legal entity and carrier for any particular placement are not named on this page. Aon’s global professional-services practice page. This establishes a marketed brokerage/advisory offering, not policy issuance or account-specific placement.company-reportedSource ↗
  • eligibility: Aon identifies law, accounting and consulting firms as the audience for its global Professional Services Practice. That audience scope does not establish eligibility for every firm or other business. Audience described for Aon’s global professional-services practice. It does not establish U.S. state availability or underwriting eligibility for a placement.company-reportedSource ↗
  • coverage: Aon describes professional liability as addressing professional-services firms’ liability exposure and says it tailors coverage structures to a firm’s needs. It identifies E&O as a commonly used name for professional-liability insurance; actual policy terms are not stated. Aon’s marketing description of the brokerage/coverage area. The page is not the insurer’s policy form and does not establish an insured's entitlement to coverage.company-reportedSource ↗
  • services: Aon says its professional-services advisors use industry knowledge, insights, data and tools to support risk-management and human-capital decisions. This is a company-described advisory service, not a claim outcome or policy benefit. Company-reported advisory services on Aon’s global practice page; account-specific service scope is not stated.company-reportedSource ↗
  • insurer: The reviewed practice page does not name the insurer or producing legal entity for a specific placement. Ask for both on the quote and binder. Aon’s global practice page as reviewed 2026-09-30; no state-specific placement schedule or buyer quote was reviewed. This does not establish that Aon cannot arrange a placement.not-foundSource ↗
  • limits: The reviewed page does not state a buyer-specific limit, retention, deductible or other placement terms. Confirm these in the quote, bond or issued policy. Aon’s global practice page as reviewed 2026-09-30; no quote, bond form or issued policy was reviewed.not-disclosedSource ↗

Travelers

  • role: Travelers underwrites errors and omissions insurance as one of several management and professional liability products, sold as a standalone policy written for the buyer's profession rather than bundled with other lines by default. E&O and management-liability product pages, as read on 2026-09-23.company-reportedSource ↗Source ↗
  • insurer: The E&O page's footer names Travelers Casualty and Surety Company of America and its property-casualty affiliates, but Travelers also states the material does not amend any issued policy, so the exact issuing entity for a given E&O product depends on the policy. Footer disclosure on the errors-and-omissions page.company-reportedSource ↗
  • eligibility: Travelers offers separate E&O products by profession, including accountants, design professionals, lawyers, real estate professionals, insurance professionals, life/accident/health insurance agents, managed care organizations, financial institutions and a miscellaneous professional liability option for other client-facing professionals. Product-selection list on the E&O page.company-reportedSource ↗
  • coverage: Travelers describes E&O as covering the costs of client allegations of inadequate work, negligent actions or failure to meet the expected level of service, including legal defense and settlement costs, and says coverage can be customized to the risks of a specific profession. E&O overview and video transcript; exclusions and limits are not detailed on this page and depend on the policy as issued.company-reportedSource ↗
  • limits: The reviewed E&O page does not publish limit or retention amounts for any of its professional-liability products. Errors-and-omissions page as read on 2026-09-23.not-disclosedSource ↗
  • application: Travelers directs buyers to talk to an independent agent to place E&O coverage, and tells agents to use its management-and-professional-liability applications and forms library. E&O page CTA and video transcript.company-reportedSource ↗Source ↗

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